CN112756116A

CN112756116A - Feeding pipe device for disc separator

Info

Publication number: CN112756116A
Application number: CN202110061073.1A
Authority: CN
Inventors: 肖海; 蔡海; 胡敏; 黄菊莲; 闫媛媛
Original assignee: CSSC Nanjing Luzhou Machine Co Ltd
Current assignee: CSSC Nanjing Luzhou Machine Co Ltd
Priority date: 2021-01-18
Filing date: 2021-01-18
Publication date: 2021-05-07

Abstract

The invention discloses a feeding pipe device for a disc separator, wherein a conical body for changing the direction of materials is arranged in the tail end of the feeding pipe, a plurality of circulation grooves for discharging materials are formed in the pipe wall of the feeding pipe, which is opposite to the inclined surface of the conical body, the materials enter the feeding pipe from the upper part of the feeding pipe, downwards hit the inclined surface of the conical body, are distributed through the corresponding circulation grooves in the inclined surface of the conical body and flow into a distributor. The invention can effectively reduce the stirring and mixing action on the materials, thereby improving the separation effect of the disc separator, and is particularly suitable for the application occasions of liquid-solid two-phase separation materials with fine solid-phase particles and easy breakage.

Description

Feeding pipe device for disc separator

Technical Field

The invention relates to a feeding device of a disc separator, in particular to a feeding pipe device for the disc separator, and belongs to the technical field of separation machinery.

Background

A disk separator is a high speed decanter centrifuge that quickly and efficiently separates a mixture of liquids and solids at high rotational speeds and with the resultant powerful centrifugal force. Due to its high-efficiency separation, it is widely used in the industries of ship, food, medicine, chemical industry, textile, environmental protection, etc.

The disc separator mainly comprises a motor, a vertical shaft system, a rotary drum, a frame, an in-out device and the like, as shown in figure 1, wherein the rotary drum system is a core and is a main separation functional component. The drum is shown in fig. 2 and mainly comprises a drum body, a drum cover, a piston, a distributor, a disc, etc.

How to improve or improve the separation effect of the disc separator is always the core of the disc separator technology, and a lot of patents are written around improving the separation effect in the past, and the improvement of the separation effect is also always pursued by separator technicians. But is always worth improvement and enhancement due to the complexity and diversity of the materials to be separated.

Disclosure of Invention

The technical problem to be solved by the present invention is to overcome these technical defects, and to provide a feeding pipe device for a disk separator, which can effectively reduce the stirring of the material, so as to reduce or alleviate the breakage of solid phase particles or liquid phase particles (such as fat globules) in the material to be separated, thereby improving the actual separation effect of the separator.

The technical scheme for solving the technical problems is as follows: a feeding pipe device for a disc separator comprises a rotary drum body, a piston, a rotary drum cover, a disc group, a distributor, a feeding pipe and a discharging pump, wherein the feeding pipe is fixed on a frame of the separator body, a centripetal pump is arranged in the circumferential direction of the middle section of the feeding pipe, the lower section of the feeding pipe penetrates into a feeding section of the distributor through a through hole in the distributor, a screw plug is positioned at the lower side of the centripetal pump and fixedly connected with the distributor, the distributor is arranged on the rotary drum body and is connected with a discharging hole of the feeding pipe through a feeding hole at the bottom of the distributor, a conical body for changing the direction of materials is arranged inside the tail end of the feeding pipe, a plurality of flow channels for discharging materials are arranged on the pipe wall of the feeding pipe opposite to the inclined plane of the conical body, the materials enter the feeding pipe from the upper part of the feeding pipe and are beaten downwards on the inclined plane of the conical body which, flows into the interior of the distributor.

Further, the cone vertex angle phi of the conical body is 45-135 degrees, and 90 degrees is the best angle.

Furthermore, the number of the circulation grooves is even and is distributed symmetrically, and the number of the circulation grooves is generally 2, 3, 4 or 6.

Further, the shape of the circulation groove is circular, rectangular or oval.

Furthermore, the inner surface of the distributor corresponding to the radial circulation groove at the bottom end of the feeding pipe is a smooth surface to form a liquid flow buffer area, and then the liquid flow buffer area is distributed to the central hole of the disc through the distribution flow channel at the bottom of the distributor and is distributed to the disc group, so that the stirring of the entering materials is further reduced, and the separation effect of the materials is enhanced.

Furthermore, the cavity tube in the distributor is of a herringbone structure, the herringbone structure comprises a main cavity tube, a left branch cavity tube and a right branch cavity tube, the left branch cavity tube and the right branch cavity tube are symmetrically arranged on two sides of the main cavity tube, and a distributor feeding hole is formed in the right branch cavity tube.

The invention has the beneficial effects that: the feeding pipe device for the disc separator greatly reduces the stirring and scattering of materials due to the synchronous action when the materials enter the separator, thereby improving the actual separation effect of the separator.

Drawings

FIG. 1 is a schematic view of a disk separator assembly.

FIG. 2 is a conventional drum feed diagram.

Fig. 3 is a schematic structural diagram of the present invention.

FIG. 4 is an enlarged view of the bottom section of the feed pipe of the present invention.

Fig. 5 is a cross-sectional view of fig. 4.

Description of the drawings: 1-motor, 2-frame, 3-drive train, 4-rotary drum, 5-in-and-out device, 11-rotary drum body, 12-piston, 13-rotary drum cover, 14-disc group, 15-distributor, 16-feeding pipe, 17-discharging pump, 18-vertical shaft nut, 19-distributor internal rib, 20-distributor smooth internal surface, 21-feeding pipe bottom cone, 22-circulation groove and 23-feeding pipe bottom cone surface.

Detailed Description

Examples

The invention provides an anti-clogging system of a nozzle type disc separator, which is shown in figure 1: the separator drum part mainly comprises a drum body, a piston, a drum cover, a disc set, a distributor, a feeding pipe, a discharging pump and other parts. The rotary drum body and the rotary drum cover are combined into a rotary drum which is a main stressed part, and the piston moves up and down to realize the slag discharging function of the separator; the disc group is a separation functional area and is a main realization area for material separation; the distributor distributes the materials to the disc groups uniformly, and the inside of the distributor has the distribution function and the feeding buffering function; the discharge pump pumps the separated materials out of the machine.

When the disc separator works, a rotary drum part rotates at a high speed around the axis of the vertical shaft under the drive of the transmission device, and the machine frame and the in-out device are static. The materials enter the distributor through the feeding pipe in the middle of the inlet and outlet device, are uniformly distributed into the disc group through the distributor for separation, and the light liquid phase goes to the axis direction of the rotary drum of the separator along the disc and reaches the light phase chamber, and is pumped out of the separator or sprayed out of the separator through the centrifugal pump; the solid phase descends to the edge of the disc along the disc group, is gathered in a slag accumulation area formed by a rotary drum cover and a piston in the rotary drum and is discharged out of the rotary drum through a slag discharge mechanism.

The feeding pipe is fixed on a machine frame of the separator body, a conical body is designed in the tail end of the feeding pipe, the conical vertex angle phi of the conical body ranges from 45 degrees to 135 degrees, the optimal angle is about 90 degrees, a plurality of circulation grooves for discharging are formed in the pipe wall opposite to the inclined surface of the conical body, the number of the circulation grooves is generally 2, 3, 4 or 6, and the circulation grooves can be oval, round, square and the like; the material enters the feed tube from the upper part of the feed tube and hits down on the relatively stationary cone ramp, which assists in changing the direction of the flow and is then distributed through the corresponding flow channels 22 in the cone ramp and flows into the interior of the distributor, as indicated by the flow channel side arrows in fig. 2.

Meanwhile, the inner surface of the distributor corresponding to the radial circulation groove at the bottom end of the feeding pipe is designed to be a smooth surface without ribs, so that liquid flow is distributed into the distributor from the arrow beside the circulation groove 22 and hits the smooth inner surface of the distributor to generate a certain buffer area, and then is distributed into a disc group through a distribution flow channel at the bottom of the distributor to a disc central hole.

In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.

Claims

1. The utility model provides a feed pipe device for disk type separating centrifuge, includes the rotary drum body, piston, changes drum cover, disc group, distributor, inlet pipe and discharge pump, the inlet pipe is fixed in the frame of separating centrifuge body, install the centripetal pump in the circumference in inlet pipe middle section, its hypomere is passed through the through-hole on the distributor, gos deep into in the feed section of distributor, the plug screw is located centripetal pump downside, and the rigid coupling the distributor, the distributor install in on the rotary drum body to be connected its characterized in that through the feed port of its bottom and the discharge gate of inlet pipe: the material distributor is characterized in that a conical body used for changing the direction of materials is arranged in the tail end of the feeding pipe, a plurality of circulation grooves used for discharging materials are formed in the pipe wall of the feeding pipe opposite to the inclined surface of the conical body, the materials enter the feeding pipe from the upper portion of the feeding pipe, downwards strike the inclined surface of the conical body which is relatively static, are distributed through the corresponding circulation grooves in the inclined surface of the conical body and flow into the distributor.

2. Feed pipe device for a disk separator according to claim 1, characterized in that: the cone apex angle phi of the conical body is 45-135 degrees.

3. Feed pipe device for a disk separator according to claim 2, characterized in that: the cone apex angle phi of the conical body is 90 degrees.

4. Feed pipe device for a disk separator according to claim 1, characterized in that: the number of the circulation grooves is even number and is distributed symmetrically.

5. Feed pipe device for a disk separator according to claim 1, characterized in that: the shape of the circulation groove is round, rectangular or oval.

6. Feed pipe device for a disk separator according to claim 1, characterized in that: the inner surface of the distributor corresponding to the radial circulation groove at the bottom end of the feeding pipe is a smooth surface to form a liquid flow buffer area, and the liquid flow buffer area is distributed to the central hole of the disc through a distribution flow channel at the bottom of the distributor and then distributed to the disc group.

7. Feed pipe device for a disk separator according to claim 1, characterized in that: the cavity tube in the distributor is of a herringbone structure, the herringbone structure comprises a main cavity tube, a left branch cavity tube and a right branch cavity tube, the left branch cavity tube and the right branch cavity tube are symmetrically arranged on two sides of the main cavity tube, and a distributor feeding hole is formed in the right branch cavity tube.